LM4802B Datasheet | National Semiconductor

Audio Power Amplifier with Boost Converter to Drive Ceramic Speakers November 2004 LM4802B Audio Power Amplifier with Boost Converter to Drive Ceramic Speakers General Description The LM4802B integrates a Boost Converter with an Audio Power Amplifier to drive Ceramic Speakers in portable applications. When powered by a 3V supply, it is capable of forcing 12Vp-p across a 2µF + 30Ω bridge-tied-load (BTL) with less than 1% THD+N. Boomer audio power amplifiers were designed specifically to provide high quality output power with a minimal amount of external ponents. The LM4802B does not require bootstrap capacitors, or snubber circuits. Therefore it is ideally suited for portable...